Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W9YRT callsign genealogy
Currently held by SEIDEL, JEFF
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W9YRT's current licensee, walking backwards.
- SEIDEL, JEFFILgranted 2022-08-20cancelled 2025-02-04
Successor callsigns
Callsigns held now by people who previously held W9YRT.
- SEIDEL, JEFFILgranted 2022-08-20cancelled 2025-02-04
All historical holders
Every license row we've seen with the callsign W9YRT, oldest first.
- SEIDEL, JEFF IL2022-04-05 → cancelled 2022-08-20
- SEIDEL, JEFF IL2025-02-04 → cancelled 2025-04-24